#include <qwt_scale_map.h>
Public Types | |
| enum | Type { Linear, Log10, Other } |
Public Member Functions | |
| QwtScaleTransformation (Type type) | |
| virtual | ~QwtScaleTransformation () |
| virtual double | xForm (double x, double s1, double s2, double p1, double p2) const |
| virtual double | invXForm (double x, double s1, double s2, double p1, double p2) const |
| Type | type () const |
| virtual QwtScaleTransformation * | copy () const |
| QwtScaleTransformation::QwtScaleTransformation | ( | Type | type | ) |
Constructor for a linear transformation.
| QwtScaleTransformation::~QwtScaleTransformation | ( | ) | [virtual] |
Destructor.
| QwtScaleTransformation * QwtScaleTransformation::copy | ( | ) | const [virtual] |
Create a clone of the transformation.
| double QwtScaleTransformation::invXForm | ( | double | p, | |
| double | p1, | |||
| double | p2, | |||
| double | s1, | |||
| double | s2 | |||
| ) | const [virtual] |
Transform a value from a linear to a logarithmic interval.
| x | value related to the linear interval [p1, p2] | |
| p1 | first border of linear interval | |
| p2 | first border of linear interval | |
| s1 | first border of logarithmic interval | |
| s2 | first border of logarithmic interval |
| Type QwtScaleTransformation::type | ( | ) | const [inline] |
| double QwtScaleTransformation::xForm | ( | double | s, | |
| double | s1, | |||
| double | s2, | |||
| double | p1, | |||
| double | p2 | |||
| ) | const [virtual] |
Transform a value between 2 linear intervals.
| x | value related to the interval [x1, x2] | |
| x1 | first border of source interval | |
| x2 | first border of source interval | |
| y1 | first border of target interval | |
| y2 | first border of target interval |
1.5.8